baber/WOPTO huggingface dataset:
Patent GB-1165562-A (GB)
Title: Improvements in and relating to Loud Speakers.
IPC: G10K15/10
Filed: 1966-10-07
Abstract: 1,165,562. Reverberation loudspeakers. VILLAMOSSAGI-, TELEVIZIO-ES KADIOKESZULEKEK GYARA. 7 Oct., 1966 [9 Oct., 1965], No. 45042/66. Headings H4J and H4R. A moving coil 2 on a centering element 7 is connected to a diaphragm 4 through helical springs 3 which provide delay, preferably greater than 10 milliseconds, to provide a reverberation effect. A U-shaped wire (8), Fig. 2 (not shown), connects the moving coil 2 to a cross-wire 10 soldered to the springs 3. A U-shaped wire (9) connects the diaphragm 4 to a crosswire 11 also soldered to the springs 3. The spring ends are soldered to metal plates 6 on a sound board 5. Alternatively (Fig. 3, not shown) two diaphragms are positioned on opposite sides of a moving coil and are connected to the moving coil through a common delay device consisting of three helical springs.
Patent GB-978024-A (GB)
Title: Dynamo electric machines
Inventor: BENNETT ROY BRIAN
IPC: H02K3/22
Filed: 1962-11-29
Abstract: 978,024. Cooling dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Nov. 26, 1963 [Nov. 29, 1962], No. 45112/62. Heading H2A. A liquid cooled rotor 11 has the cooling liquid fed to and from the cooling ducts 20-24 associated with the rotor winding through respective inlet and outlet passages 27, 72 in the rotor body 10, and including resilient inlet and outlet connectors 62 for conveying the cooling liquid between the cooling ducts and the inlet and outlet passages. Fig. 2 shows the outlet end of the rotor with coaxial inlet and outlet passages at the centre of the rotor body. The cooling fluid from the groups of hollow conductors is fed through the hollow connectors 54, only are shown, via resilient plastic pipes 62 into covered axial troughs around the rotor body and then via radial passages 71 into the outlet passage 72. The cooling fluid feeding arrangements, Fig. 1 (not shown), are similar to the outlet arrangements. The end of the first coil 50 is held in position by a wedge 53 and is connected to one of the slip rings. The end windings are held in position by a closely fitting end bell, Fig. 3 (not shown).
Patent GB-1118330-A (GB)
Title: Improved air conditioning unit
IPC: F24F13/00
Filed: 1966-10-10
Abstract: 1,118,330. Room ventilating units. CHRYSLER CORP. 10 Oct., 1966 [13 Oct., 1965], No. 45118/66. Heading F4V. A cover assembly for an air conditioning unit comprises two sections adapted to fit the front of the unit and controls the air flow to and from the unit. The cover assembly comprises a first section 22 of rectangular links pivotally connected to a second section 24, including a decorative panel 26, displaceable in front of the air inlet opening 18 and outlet 20. A plate 30 is pivotally connected to the second section 24 to obstruct a direct air path from the output to the input of the unit. A friction element (not shown) is associated with one or more end brackets 54 and allows intermediate settings between the open position in which the section 22 and plate 30 are substantially at right angles to the front wall 14, and the closed position in which they are substantially flush with that wall.
Patent GB-1141641-A (GB)
Title: Improvements in or relating to the forming of helically ribbed grinding wheels
Inventor: JELLIS MORGAN
IPC: B24B53/08
Filed: 1964-11-10
Abstract: 1,141,641. Trueing grinding wheels. COVENTRY GAUGE & TOOL CO. Ltd. 9 Feb., 1966 [10 Nov., 1964], No. 45690/64. Heading B3D. A forming element, roller or the like for forming a grinding wheel comprises an operative surface faced or impregnated with diamond particles. As described, the element is used for forming a helically-ribbed grinding wheel 1, Fig. 1 (not shown), for thread or gear grinding and the element may be in the form of a roller 2 having helical or annular ribs 4 or in the form of a ribbed block 3, Fig. 2 (not shown). The ribs 4 of the roller or block are faced or impregnated with diamonds 5, Fig. 3 (not shown). In use the roller or block, as the case may be, is traversed past the grinding wheel in timed relation to the rotation of the grinding wheel by means of a cam or other mechanism such as described in Specifications 749,559 and 557,946. In another embodiment, the forming element is in the form of a pair of discs 6 or 6a, Figs. 4 and 5 (not shown) with chamfered surfaces 8, 8a. Either the chamfered surfaces or the flat surfaces 9 may be faced or impregnated with diamond particles and engage the grinding wheel.
Patent GB-1512040-A (GB)
Title: Method of sensitizing silver halide photographic emulsion
IPC: G03C1/14
Filed: 1975-11-03
Abstract: 1512040 Sensitizing silver halide emulsions FUJI PHOTO FILM CO Ltd 3 Nov 1975 [5 Nov 1974] 45696/75 Heading G2C [Also in Division C4]  Silver halide photographic emulsion is sensitized by the incorporation of a dye of Formula I wherein R<SP>1</SP> is -L-(SO 3 M) k ; L is an alkylene group optionally substituted with at least one hydroxy group, phenyl group or a halogen atom wherein the carbon atoms in the straight chain alkylene portion are not more than 5 or is an arylene group optionally substituted with at least one of a halogen atom, an alkyl or alkoxy group having 1 to 4 carbon atoms or a hydroxy, phenoxy, amino, carboxy, or sulpho group; M is a hydrogen atom or an atom or group capable of forming a salt; R<SP>2</SP> is a hydrogen atom or a methyl group; R<SP>3</SP> is an alkyl or alkoxy group; k is 1 or 2; m is 0 or 1; n is 0, 1 or 2; and the dye is incorporated in an amount of 0À005 to 50g per mole of silver halide. The dye provides spectral sensitization and inherent sensitivity increasing effects, increases the sharpness and resolving power of the emulsion, and is rapidly decolored in photographic processing.
Patent GB-1421772-A (GB)
Title: Visors
IPC: A61F9/02
Filed: 1972-10-04
Abstract: 1421772 Visors STADIUM Ltd 4 Oct 1973 [4 Oct 1972 10 Nov 1972] 45772/72 and 52057/72 Heading G2J A visor comprising a sheet of plastics material has a central transparent portion 24 and a peripheral zone 22 with contrasting optical properties. The zone 22 may be formed by painting, printing or masking the plastics sheet. The central portion 24 may be tinted. Press-stud fasteners 16, 20 are used to attach the visor to a safety helmet.
Patent GB-1019220-A (GB)
Title: Process for the homopolymerisation or copolymerisation of vinyl or vinylidene monomers
IPC: C08F2/00
Filed: 1964-11-13
Abstract: Vinyl and vinylidene monomers are polymerized in the presence o one or more catalyst of formula <FORM:1019220/C3/1> wherein R is hydrogen, C1- 3 alkyl or halogen, and R1 is hydrogen, C1- 3 alkyl, phenyl, nitrile or COOR2 where R2 is C1- 3 alkyl.  Specified monomers are acrylic and methacrylic esters and amides, acrylonitrile, styrene, vinyl carbazole, vinyl pyrrolidone, vinyl chloride and vinylidene chloride.  Specified catalysts are phenyl acetaldehyde, diphenyl acetaldehyde, hydratropaldehyde, phenyl formyl methyl acetate and phenyl formyl acetonitrile. Polymerization may be effect in bulk, solution, suspension or emulsion, and may be accelerated by exposure to ultraviolet light. Known catalysts such as peroxides and azo compounds may also be present.  Examples describe the bulk polymerization of methyl methacrylate in the presence of (1) phenyl acetaldehyde, hydratropaldehyde, diphenyl acetaldehyde, phenyl formyl acetonitrile and phenyl formyl methyl acetate; (2) and (3) hydratropaldehyde; and hydratropaldehyde and phenyl formyl acetonitrile (4) with and (5), (6) and (7) without utraviolet light; (8) the bulk polymerization of vinyl acetate, styrene, n-butyl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, acrylonitrile, vinyl chloride, vinylidene chloride, vinyl carbazole and vinyl pyrrolidone and copolymerization of methyl methacrylate and acrylonitrile; styrene, acrylonitrile and vinyl carbazole; and styrene, methyl methacrylate and vinylidene chloride in the presence of hydratropaldehyde; the solution polymerization of (9) methyl acrylate, ethyl acrylate, methyl methacrylate and cyclohexyl methacrylate in ethyl acetate; (10) methyl methacrylate in cyclohexane, acrylamide and methacrylamide in ethanol, and acrylic acid in xylene, and copolymerization of styrene and maleic anhydride in (9) acetone and (10) cyclohexane in the presence of hydratropaldehyde; and (11) the suspension polymerization of methyl methacrylate in water in the presence of polyvinyl alcohol and hydrotropaldehyde.
Patent GB-1512274-A (GB)
Title: Venetian blind and method for its production
IPC: E06B9/384
Filed: 1975-11-11
Abstract: 1512274 Venetian blinds STOREN-UND MASCHINENFABRIK EMIL SCHENKER AG 11 Nov 1975 [23 July 1975] 46588/75 Heading E1J A venetian blind comprises laminae 1 supported on strings 2 by staples 8. The strings have interwoven loops 4 through which the staples extend, the limbs of the staples passing through flanges 6 at the edges of the laminae and being bent over. The flange may retain a plastics reinforcement member (10, Fig. 4). The staples are driven through the flange by a driver (17, Figs. 5, 6) while the lamina edge is retained by blocks (12, 15).
Patent GB-1468384-A (GB)
Title: Switching apparatus for use in making and breaking an electrical circuit and method of manufacture
IPC: H01H13/785
Filed: 1974-10-29
Abstract: 1468384 Retractive switches ESSEX INTERNATIONAL Inc 29 Oct 1974 [31 Oct 1973] 46805/74 Heading H1N [Also in Division B5] A switch plate 19 has a raised non-conductive resilient portion 20 carrying a movable contact 24, portion 20 buckling when depressed to give a tactile sensation. When used in a keyboard for e.g. a calculator, plate 19 has a plurality of movable contacts 24, in raised portions 20, corresponding to the keys 6 which bear on contacts 24 through a flexible plate 17 carrying elongated conductors 18, which contacts when depressed bridge conductors 18 and printed circuit contacts 15 on base 2. Plate 19 is formed of polycarbonate, polypropylene or other thermoplastic non-conductive material. Movable contact 24 is of a non-conductive elastomer, e.g. silicone rubber containing a quantity of discrete electrically conductive particles e.g. spheres of a base metal such as copper coated with a noble metal such as silver. Contacts 24 may be always conductive or only conductive when compressed. The presence of the conductive particles causes the surface of contacts 24 to be slightly abrasive or gritty whereby compression of contacts 24 cleans conductors 15 and 18. Plate 17 is of flexible non-conductive polyester or similar material. In a modification, movable contacts (24a), Fig. 7 (not shown), are solid conductive metallic rivets. A mould for manufacturing plate 19 is described, Fig. 8 (not shown), producing a plate 19 without the movable contacts, Fig. 9 (not shown), and a method of forming and heat curing the movable contacts in plate 19 is described, Fig. 10 (not shown), the heat-curing being by passing current through the contacts or raising the temperature of the whole mould, see Division B5.
Patent GB-977046-A (GB)
Title: Glove turning machines
IPC: A41D19/04
Filed: 1963-11-27
Abstract: 977,046. Turning inside out SINGER CO. Nov. 27,1963 [Nov. 27, 1962], No. 46872/63. Heading D1X. A glove-turning machine comprises a hollow glove form having the finger and thumb portions open at the tips thereof, means for moving the glove form from a glove-receiving position to a glove-stripping position, and means for applying a vacuum to the interior of the glove form when in the glove-stripping position for inverting and holding the tips of the glove on the form. The machine is a modification of the machine described in Specification 839,916. Four glove forms 9 are mounted on the respective faces 6 of a hollow square block 5 rotated intermittently through 90 degrees by a shaft 2. Each glove form comprises a hollow base 10 communicating with a chamber 12 carrying four finger tubes 13 open at their tips. On each side of chamber 12 as 10 is formed with an opening 14 which may either be closed by a plug 15 or receive an adaptor 16 carrying a thumb tube 17 open at the tip. Bores 22 formed in block 5 through the faces 6 communicate with the bases 10. Block 5 is formed with a bore 18 journalled on a fixed vacuum chamber 19. A port 23, formed in the side wall of the latter, communicates via a port 22 with the glove form in the glove-stripping position. A piston valve 26, on a piston rod 29, is adapted, when engaging a seat 27, to connect the vacuum chamber to the glove form in the glovestripping position, and when engaging a seat 28 to connect said glove form to the atmosphere via ports 25 in block 5. Rod 29 also carries a piston 3<SP>1</SP> disposed in a cylinder 30. Ports 32, 33 at theopposite ends of the latter are connected by respective pipes 34, 35. Said valve is operated by a cam on shaft 2, and the arrangement is such that when a glove form arrives at the glove-stripping position, vacuum is applied to the interior of the glove form. The tips of the glove are thereby sucked into the tubes 13 and 17 and are held therein while the glove is inverted and removed by members engaging the wrist portion of the glove. The vacuum in said glove former is then released.
Patent GB-1018158-A (GB)
Title: Grapple tong
IPC: B66C1/62
Filed: 1964-11-18
Abstract: 1,018,158. Devices for handling barrels. GREATER IOWA CORPORATION. Nov. 18, 1964 [Nov. 26, 1963], No. 46948/64. Heading B8H. To attach a barrel gripping device, Fig. 2, to a barrel 136 the device is placed on top of the barrel with the parts as shown in Fig. 1 (not shown), and a lever 112 is pulled up towards a bracket 34 after rotating a lever 44, 46 clockwise against a spring 47. Upward movement of the lever 112 causes a cam roller 124 to pivot a tongue element 62 into engagement with a rim 140 on the barrel. A spring-loaded plunger 106 is compressed against the barrel and the anticlockwise torque thus produced on the tongue holds the lever 112 in the Fig. 2 position. Two such devices are attached to opposite sides of a barrel and interconnected by a lifting chain 134. When the barrel is raised the bracket 34 is rotated clockwise and compresses springs 61, disposed between bracket 34 and bracket 10, until a bar 52 abuts surfaces 20 of the bracket 10. The bar 52 also engages the tongue 62 holding it in engagement with the barrel. This pivotal movement of bracket 34 allows the spring 47 to rotate the lever 44, 46 anticlockwise until the portion 44 is above the lever 112. When the force on the chains is released the portion 44 abuts the lever 112 and the springs 61 overcome the spring plunger 106 and depress both the bracket 34 and the lever 112. The spring-loaded plungers now move the tongues 62 out of engagement with the barrel. The disposition of a cam face 88 may be adjusted by screws 80, 84 which open or close a slit 72. Horizontal barrels may be picked up by hooks 14.
Patent GB-1092406-A (GB)
Title: Evacuating valve assembly for a hydraulic jack
IPC: F16K24/06
Filed: 1965-11-05
Abstract: 1,092,406. Valves. J. L. GRATZMULLER. Nov. 5, 1965 [Nov. 20, 1964], No. 47028/65. Heading F2V. [Also in Division F1] A quick-acting evacuation valve for a spring-returned hydraulic jack 10, Fig. 2, suitable for actuating a circuit-breaker is associated with a non-return fluid inlet valve 26, Fig. 1, and comprises a casing 2 divided by a piston 12 into a first compartment 14 open at 6 to a valved conduit 46 connected either to an accumulator 36 or to a sump 48 according to the setting of the control valve 44, and into a second compartment 16 continuously open at 8 to the fluid side of the jack piston and connected to the evacuation duct 18 through an orifice 20 controlled by the evacuation valve 22 formed by the nose 28 of the piston 12 which latter has at least one fluid inlet aperture 24 controlled by the inlet valve 26 which is of ring form and slidably mounted on the piston nose 28. In operation, fluid pressure admitted to compartment 14 assists a spring 30 in holding evacuator valve 22 closed and opens inlet valve 26 against a spring 32, and on switching valve 44 to connect compartment 14 to the neck 48 jack pressure in compartment 16 closes inlet valve 26 and opens evacuation valve 22 against its spring 30. In a modification the inlet valve (26<SP>1</SP>), Fig. 3 (not shown), comprises a sleeve slidably mounted on the piston nose which is hollow and has radial inlet apertures (24<SP>1</SP>) upstream of which a calibrated jet (64) which regulates the speed of both the forward and return stroke of the jack.
Patent GB-965624-A (GB)
Title: Improvements in or relating to the manufacture of footwear
IPC: B29D35/00
Filed: 1962-12-13
Abstract: 965,624. Manufacture of footwear. H. LUDWIG. Dec. 13, 1962 [Nov. 24, 1962], No. 47048/62. Heading B5A. In a process for injection moulding soles of plastics material or rubber to uppers, the sole material is injected into the mould at a comparatively low internal pressure, e.g. 3 atmospheres, and shortly after injection e.g. 15-30 seconds, an increased pressure e.g. 8-10 atmospheres is produced in the mould. The control system consists of a double acting pneumatic piston drive 23, comprising a piston 24, which divides the cylinder 26 into two pressure chambers 27 and 28, and a connecting rod system 25. The chamber 27 is connected to a pressure source 31 by a pressure medium pipe 29 in which a valve 33 is incorporated, the valve having position I in which the pipe is not interrupted, so producing full pressure in the chamber 27, and position II in which there is no excess pressure in the chamber 27. The upper chamber 28 is connected to the source 31 by a pressure medium pipe 30 in which a pressure reduction valve 34 and valve 35 is incorporated. In position I the valve 35 connects the chamber 28 to the reduced pressure source, and in position II to the atmosphere. A multiple part mould 10 comprising two frame sections 13, displaceably mounted on a table 14 and having a sealing lip 15, on which the last 12 may be mounted is supplied to an injection unit 11. The mould also has a bottom ram 17 actuated by the piston drive 23 and having an exchangeable attachment member 18. The valves 33, 35 are placed in the I position and the ram 17 is moved upward by the pressure difference between chambers 27, 28, the correct injection position being given by a stop nut 46. The piston via rods 40, 41 releases a switching element 42 which causes the injection passage 20 to be exposed. The injection continues until the pressure of the material becomes great enough to move the ram downwards causing the passage to be closed via switch 42, and the mould is then moved from the injection unit. The valve 35 is moved to position II so the chamber 28 communicates with the atmosphere and a higher pressure is thus applied to the ram and hence the sole. When set the valve 33 assumes position II and the shoe is removed from the last.
Patent GB-1180357-A (GB)
Title: Torque Overload Safety Device for Clutches
IPC: F16D43/286
Filed: 1968-10-04
Abstract: 1,180,357. Clutch control. KELLER & KNAPPICH G.m.b.H. 4 Oct., 1968 [21 Nov., 19671, No. 47101/68. Headings F2C and F2L. A pneumatically operated friction clutch 6 is disengaged on overload detected by relative rotation between the inner and outer sleeves 10, 12 of a resilient coupling 11 in series with the clutch 6. The resilient coupling comprises a rubber annulus 11 between the sleeves 10, 12 which are respectively fast with a sleeve 9 driven by the clutch output shaft 8 and a driven sleeve 13. A pin 14 fast with the sleeve 13 engages a helical slot 15 in a sleeve 16 and a drum 18 fast with the sleeve 9 carries a pin 17 engaging an axial slot 19 in the sleeve 16. On overload, relative rotation between the sleeves 9, 13 causes axial movement of the sleeve 16 which closes a switch 20 to energize a solenoid 21 that actuates a valve 23 to vent pressure air from a clutch servo cylinder 4 whereupon a spring 25 disengages the clutch. The maximum permitted torque may be adjusted by varying the position of the switch 20 relative to the sleeve 16.
Patent GB-1516634-A (GB)
Title: Colouring process for synthetic textile materials
IPC: C09B29/085
Filed: 1974-10-31
Abstract: 1516634 Dyeing polyester materials IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Sept 1975 [31 Oct 1974] 47112/74 Heading D1B Aromatic polyester textile materials are dyed, padded or printed using an aqueous dispersion of a water-insoluble monoazo dyestuff of formula: in which X is hydrogen or methyl, Y and Z are each independently chlorine or bromine, R is a lower (C 1  to C 4 ) alkyl groups followed by treating the material in an aqueous solution of sodium hydrosulphite preferably in presence of alkali. Nonionic, anionic and cationic dispersing agents may be employed, the dyeing being effected at 90 to 100C in presence of diphenyl or o-hydroxydiphenyl, or alternatively at 120 to 140C under superatmospheric pressure. Padding may be followed by steaming at 100 to 160C or by baking at 160 to 220C. The hydrosulphite solution preferably contains 0.05 to 0.5% by weight of sodium hydrosulphite. Blends of the polyester with cotton or wool may be dyed.
Patent GB-1370132-A (GB)
Title: Compressed air brakes
IPC: B60T13/44
Filed: 1971-10-12
Abstract: 1370132 Compressed air brake boosters ROBERT BOSCH GmbH 12 Oct 1971 [13 Oct 1970] 47384/71 Heading F2F A compressed air brake booster comprises two pistons 20, 24 in tandem in a working cylinder 2 and operating a master cylinder via rod 28, first and second coaxial control valves 10, 11 each having a compressed air connection 15, 17, a pressure change port leading into the cylinder 2 and an atmospheric air connection 16, the compressed air connection of the second valve 11 being connected to a valve chamber which is floatingly arranged in the valve housing 6 and is disposed in a control piston 19 carrying the inlet valve seat of the second valve 11 whose outlet valve seat is arranged at the bottom of the working cylinder, the valve 10 having a retroactive piston 31 carrying a pin 40 inserted coaxially therein and arranged to establish a mechanical  connection between the two control valves if valve 10 fails. A piston 31 provides a reaction pressure or "feel". If pressure at port 15 fails control piston 19 abuts against a sleeve 29 to establish mechanical connection with valve 11 which is then changed over to admit compressed air to a chamber 24<SP>1</SP> and actuate the brakes solely by means of piston 24. If however pressure at port 17 fails the brakes are applied by piston 20, the piston 24 remaining non-pressurized but moved by piston 20.